Rapid determination of mefenamic acid by ion mobility spectrometry after ultrasound-assisted extraction by HKUST-1 metal-organic framework: a simple strategy for food safety control

Cavitation-Effect-Based Treatments and Extractions for Superior Fruit and Milk Valorisation

“…The extraction method has the advantage of eliminating the difficulties of extracting highly water-soluble compounds, such as these classes of antibiotics, from the aqueous matrix [ 53 ]. Different solid sorbents have been used in ultrasound-assisted sample pretreatment—for example, organometallic structures (MOF) synthesised from copper and 1,3,5-tricarboxylic acid for the selective, sensitive and rapid determination of mefenamic acid [ 54 ]. Alternatively, ampicillin has been analysed using MOFs composed of copper and terephthalic acid that also contain Fe 2 O 3 nanoparticles, allowing it to be magnetically separated after the ultrasound-assisted extraction process [ 55 ].…”

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“…A reaction of a 1:1 mixture (M: L) was obtained by dissolving of (0.48 g, 2 mmol) 2-[(2,3dimethylphenyl) amino] benzoic acid in 20 ml methanol, and then the equivalent moles of NaOH (0.08, 2 mmol) was added with stirring for 30 min. A (0.84 g, 2 mmol) triphenyltin chloride in boiling (20 mL MeOH) was added to the first solution and it was allowed to reflex for 8 hours, left to evaporate, washed with diethyl ether, and collected to provide complex 1 with 75% yield (Scheme 1) [34][35][36][37].…”